Finding the Fourth Proportional to 139,559,883.36, 192,592,647.84 and 77,678,893.44
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Solution
The fourth proportional to 139,559,883.36, 192,592,647.84 and 77,678,893.44 is: 107,196,877.85
Step by Step Solution
- Step 1: Write the proportion equation
139,559,883.36 : 192,592,647.84 = 77,678,893.44 : x - Step 2: Convert to fraction form
139,559,883.36/192,592,647.84 = 77,678,893.44/x - Step 3: Cross multiply
139,559,883.36x = 192,592,647.84 × 77,678,893.44 - Step 4: Simplify right side
139,559,883.36x = 14,960,383,768,890,806 - Step 5: Solve for x
x = 14,960,383,768,890,806/139,559,883.36 - Step 6: Final answer
x = 107,196,877.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.